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  5. 接枝聚異丙基丙烯醯胺的聚碳酸酯電紡薄膜做為細胞培養用基質之探討
 
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接枝聚異丙基丙烯醯胺的聚碳酸酯電紡薄膜做為細胞培養用基質之探討

Other Title
Grafting polymerized N-isopropylacrylamide into electrospun polycarbonate fine-fibrous membrane as a matrix for cells culture
Type
thesis
Date Issued
2008-07-15
Author(s)
張良宇
Advisor
曾厚
Subjects
系所名稱:生物醫學材料研究所
Description
學位別:碩士
語文別:中文
指導教授:曾厚
共同指導教授:
口試委員:林峰輝;陳克紹;許明照;何元順
中文關鍵字:細胞工學、聚異丙基丙烯醯胺、碳酸聚酯、電氣紡絲
Abstract
如何在最短的時間內修補身體上的受損的部分,向來都是醫學界所努力的目標。組織工程(Tissue engineering)便因應而生,其主要是由細胞(Cell)、訊息因子(Signal factor)與細胞外間質(Extra cellular matrix;ECM)所構成。而本研究便是將焦點放在支架的部分。本研究以聚碳酸酯高分子Polycarbonate(PC)為原料,利用電氣紡織技術,製備出具有高孔洞率之纖維薄膜,在製備的過程當中,控制不同的變因(輸液速度、電壓差的不同、溶液的配方不同等),製備出具有高強力及高孔洞率的PC薄膜,並在PC薄膜上用電漿進行表面改質,並接枝上poly-NIPPAm。poly-NIPPAm是種感溫材質,其特性為在32?aC以上呈現疏水性,與水分離;在32?aC以下時,呈現親水性,與水結合。本研究使用poly-NIPAAm用於細胞培養並以electrospinning(電氣紡絲)的技術製備PC membrane,此技術的優點為可製作出3D結構的材料且其具有高孔洞率,所製得的PC membrane以plasma進行表面改質的工作;之後在薄膜上加入NIPAAm單體的溶液進行接枝聚合。,經由electrospinning製作出來的PC membrane其孔洞大小分布在6-10μm,再接枝上poly-NIPAAm後無太大的改變且PC memebrane其孔洞率都可維持在70%以上。以相同條件所製備出的PC/poly-NIPAAm薄膜進行通透性實驗證明改質過後的PC membrane所需時間較市售insert上的PET membrane短2-3個小時。再將製備好的Poly-NIPAAm/PC membrane以3T3 cell進行細胞毒性測試,藉由細胞毒性測驗的實驗發現到Poly-NIPAAm/PC membrane為具有良好的生物相容性的材料。
URI
https://203.71.86.71/handle/123456789/12543
https://hdl.handle.net/11296/36fuzq
File(s)
No Thumbnail Available
Name

C0187351.pdf

Size

13.66 MB

Format

Adobe PDF

Checksum

(MD5):b3968271a9eca53753fc11c0091ee224

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